[JAVA3D] X3D M6 Problems: Web3d.org's "HelloWorld.wrl" Works with Sun's VRML Loaders

[P. Flavin]

Problem files with the "new" X3D Loaders often are
NO PROBLEM with the old, reliable Sun VRML Loaders.

The problem Jacky Rymasz had with Web3d.org's "HelloWorld"
X3d / VRML World is not a problem with the Sun VRML Loaders
( loading the original, equivilent VRML file ).


Problem with new X3d Loaders reported to Java3d-interest list
-------------------------------------------------------------
| Date: Fri, 10 Jan 2003 ...
| From: Jacky Rymasz ...
| Subject: R�f. : [JAVA3D] More X3D M6
|
| I installed Xj3D M6 from the .exe on Win NT SP6.
| I have JDK 1.4.0.1 and J3D 1.3.
|
| I tried the "hello world" example from
|
| http://www.web3d.org/TaskGroups/x3d/translation/
| examples/HelloWorld.html
|
| ... [ It failed and ] I got this exception .. :
|
|
| org.web3d.vrml.lang.VRMLException:
|
| SAX Error: org.web3d.vrml.lang.UnsupportedComponentException:
| There is no definition information for the component
| helloComponentorg.web3d.vrml.lang.UnsupportedComponentException:
|
| ... at org.web3d.vrml.renderer.DefaultNodeFactory.addComponent(
| DefaultNodeFactory.java:390 )
|
|
| Why so many corrections have to be made and
|
| why is it still not working properly ?
|
http://archives.java.sun.com/cgi-bin/wa?A2=ind0301&L=java3d-interest&P=R18442


Use what works best, the Sun's VRML Loaders have
been working reliabably ( not perfectly ) since
late 1999, and can animate Web3d.org's H-Anim Avatars
in a browser, and respond to user mouse events, with
Sound and without expensive Certificates on Windows & Linux.


Web3d.org's __ " Hello World " __ VRML file Works Great
----------------------------------------------------------
http://www.frontiernet.net/~imaging/vrml_loaders_working.html
http://www.frontiernet.net/~imaging/sc_web3d_org_hello_world.jpg

-- with the Sun VRML Loaders --

This HellowWorld.wrl VRML file is shown above working with Java3d
-----------------------------------------------------------
http://www.web3d.org/TaskGroups/x3d/translation/examples/HelloWorld.wrl
http://www.web3d.org/TaskGroups/x3d/translation/examples/HelloWorld.html


Sun's Java3d VRML Loader & Fly Through Demo & more
---------------------------------------------------
http://www.frontiernet.net/~imaging/games_with_java3d.html

* free source code freely available ( see above web page )


Justin Couch wrote:

| Date: Mon, 13 Jan 2003 ...
| Subject: Re: More X3D ...
|
|
| Michael P. McCutcheon wrote:
|
| > How come this simple model does not work ?
| >
| > I keep getting an ugly exception below. ...
| >
| > What am I doing wrong?
| >
|
| [ Justin Couch replies: ]
|
| This may be a bug in our handling.
|
| We'd come across this a couple of times before and
| each time I make a change and think I've fixed it,
| only to have it pop up somewhere else.
|
| The old whack-a-mole issue :(
|
| The real issue is one to do with
| the way the spec works and to which
| I have voiced many a strenous objection
| to the spec authors about.
|
| The definition of MFStrings in the XML
| encoding is different to that of the VRML
| encoding. ...
|
| That's very bad specification design
| in my book and one of the issues
| I really dislike about the XML encoding.
|
| -- Justin Couch
|
| http://www.vlc.com.au/~justin Java Architect ...
| http://www.yumetech.com Author, Java 3D FAQ Maintainer
| http://www.j3d.org
|
http://archives.java.sun.com/cgi-bin/wa?A2=ind0301&L=java3d-interest&P=26618


Ok.

People that don't want to wait on Justin's mole whacking
problem solving methodology can use the Sun VRML Loaders
where those problems are not a problem.

Use what works best, and you may find yourself using
the Sun VRML Loaders.

-- Paul, Java Developer & Web Animator
-----------------------------------------------------
"Imaging the Imagined: Modeling with Math & a Keyboard"

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